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* Cyrus IMAP

  * What is Cyrus IMAP?

    * Features

      * Quickstart Guide

        * Introduction to Cyrus IMAP

          * What is IMAP?

        * Coming Soon

          * Quick install

          * Feature overview

      * Download

        * IMAP Installation Guide

          * Installation Using Packages

            * CentOS

            * Debian

            * Fedora

            * openSUSE

            * Red Hat Enterprise Linux

            * Ubuntu

            * Open Build System Packages

          * Build and Install Yourself

            * Do It Yourself

          * External Tools

          * Licensing

        * IMAP Release Notes

          * Currently Stable Version

          * Current Development Version

          * Currently Supported Product Series

            * Series 2.5

            * Series 2.4

          * All Versions Going Back Way Back When

            * Series 1

            * Series 2: 2.0 - 2.3

        * Notes for Packagers

          * Services in "/etc/services"

      * Concepts

        * Features

          * Security and Authentication

            * Kerberos Authentication

            * LDAP Authentication

            * SQL Authentication

            * Access Control

            * Sealed System Design

          * Mailbox Management

            * Automatic Creation of Mailboxes

            * Mailbox Namespaces

            * Virtual Domains

            * Mailbox Annotations (METADATA)

            * Mailbox Distribution

          * Message Management

            * Delayed Delete

            * Delayed Expunge

            * Message Annotations (METADATA)

            * Duplicate Message Delivery Suppression

            * Shared Seen State

            * Server Side Filtering (Sieve)

            * Event Notifications

          * Storage

            * Mail Spool Partitions

            * Mailbox Metadata Partitions

            * Quota

            * Single-Instance Store

          * Load Management

            * Cyrus IMAP Murder (Server Aggregation)

        * Overview

          * Access Control Lists

            * Access Rights

            * Identifiers

            * "anonymous" and "anyone"

            * Kerberos vs. Unix Authorization

            * Negative Rights

            * Calculating the Users' Rights

            * Implicit Rights for Administrators on Personal
              Mailboxes

            * Initial ACLs for Newly Created Mailboxes

          * Login Authentication

            * Anonymous Login

            * Plaintext Authentication

            * Kerberos Logins

            * Shared Secrets Logins

          * Quota

            * Supports Quotas on Storage

            * Quota Roots

            * Mail Delivery Behavior

            * Quota Warnings Upon Select When User Has "d" Rights

            * Quotas and Partitions

          * New Mail Notification

          * Partitions

            * Specifying Partitions with "create"

            * Changing Partitions with "rename"

          * News

          * POP3 Server

          * The syslog facility

          * Mail Directory Recovery

            * Reconstructing Mailbox Directories

            * Reconstructing the Mailboxes File

            * Reconstructing Quota Roots

            * Removing Quota Roots

            * Subscriptions

          * Configuration Directory

            * Log Directory

            * Proc Directory

          * Message Delivery

            * Local Mail Transfer Protocol (lmtp)

            * Single Instance Store

            * Duplicate Delivery Suppression

          * Sieve, a Mail Filtering Language

          * Cyrus Murder, the IMAP Aggregator

        * Configuration Guide

          * Deployment Scenarios

            * Single Server Deployments

            * Multi Server Deployments

          * Cyrus Murder: Server aggregation

            * The Discrete Murder

            * The Unified Murder

            * The Shared Murder

          * Cyrus Replication

          * Hosted Environments

          * Databases

            * Overview

            * File list

            * Storage types

          * Mailbox Creation Distribution

            * Selection Mode

            * Special cases

            * Partitions Exclusion

            * Partitions Usage Data Reset

            * Mailbox Creation Distribution Through "murder
              frontend"

            * Backends Exclusion

            * Backends Usage Data Reset

          * Known Protocol Limitations

            * POP3 and Mailbox Locking

            * Cyrus IMAP POP3 Implementation

          * Authentication and Authorization

            * Client Authentication

            * Users and Mailboxes

          * Performance Recommendations

            * Databases on Temporary Filesystems

          * Storage Considerations

            * General Notes on Storage

            * Redundancy

            * Availability

            * Performance

            * Scalability

            * Capacity

            * Cost

          * Supported Platforms and System Requirements

            * Building Cyrus IMAP

            * Required Software Components

            * Recommended Software Components

            * Recommended Software Components Enabled by Default

      * Reference

        * Administrator Guide

          * Architecture

            * System Architecture

          * Management

            * Cyrus Murder

            * Access Control

            * Cyrus NNTP

            * Cyrus Prot Layer

            * Cyrus Sieve

            * Cyrus Backups

            * Standard Operating Procedures

            * Cyrus Event Source

            * Mailbox Distribution

            * HOWTO: Using an NGINX IMAP Proxy

            * Tweaking Cyrus IMAP

        * Frequently Asked Questions

          * Features

            * Which database backend should I use for which
              databases?

            * Duplicate Delivery Suppression

          * Installation Problems

            * Compilation errors about kssl.h and krb5.h on Red Hat
              Linux/Fedora

            * Problems detecting Berkley DB on Red Hat Linux

            * Help! There must be an easier way to get all this
              going...

          * Common Feature Requests

            * Does the Cyrus Murder support High Availability
              configurations?

            * Can I configure pop3d to log amount and size of
              messages fetched by user?

            * How can I make CyrusSieve work with public shared
              folders?

            * Can I have subfolders not appear under INBOX?

          * Common Operational Questions

            * How do I view ACLs on a mailbox?

            * What annotations are available?

            * Why does ctl_cyrusdb -r take so long with Berkeley DB?

            * Is it safe to put configdir/proc and configdir/lock on
              a tmpfs filesystem?

            * Is the "db3: x Lockers" log message harmful?

            * Why can I not delete a mailbox as an admin user?

            * When is What ... Deleted, Expired, Expunged or Purged?

            * Why is deliver.db so large?

            * I have multiple imapd-SERVICES configured and
              experience occasional freezes when I try to log in!

            * Cyrus delivers claims that the mailbox does not exist

            * Why is mail being rejected with No Mailbox found due
              to MiXed CaSe incoming e-mail?

            * Can I use MySQL (or another SQL database) as the
              primary mail store?

            * Why do POP3 connections take so long, but once the
              connection is established all is well?

            * Why does reconstruct -m not work?

            * Shared File Systems GPFS for high availability

            * How to enable telemetry

            * The process count keeps growing!

            * "unable to join environment" error

            * Why does Cyrus set the MAIL FROM address of the sender
              of vacation responses to '<>'?

          * Common Interoperability Problems

            * Why does Cyrus reject 8-bit characters in the headers
              of my messages?

            * Why does Cyrus reject messages with "bare newlines"?

            * How do I get Cyrus Sieve to play nice with Exim?

            * Why does mail delivery go slow or hang sometimes?

        * Man pages

          * (5) Configuration Files

            * **cyrus.conf**

            * imapd.conf

            * **krb.equiv**

          * (8) System Commands

            * **arbitron**

            * **backupd**

            * **chk_cyrus**

            * **ctl_backups**

            * **ctl_conversationsdb**

            * **ctl_cyrusdb**

            * **ctl_deliver**

            * **ctl_mboxlist**

            * **ctl_zoneinfo**

            * **cvt_cyrusdb**

            * **cyr_backup**

            * **cyr_buildinfo**

            * **cyr_dbtool**

            * **cyr_deny**

            * **cyr_df**

            * **cyr_expire**

            * **cyr_info**

            * **cyr_sequence**

            * **cyr_synclog**

            * **cyradm**

            * **cyrdump**

            * **deliver**

            * **fetchnews**

            * **fud**

            * **httpd**

            * **idled**

            * **imapd**

            * **ipurge**

            * **lmtpd**

            * **lmtpproxyd**

            * **master**

            * **mbexamine**

            * **mbpath**

            * **mbtool**

            * **mkimap**

            * **mupdate**

            * **nntpd**

            * **notifyd**

            * **pop3d**

            * **pop3proxyd**

            * **quota**

            * **reconstruct**

            * **restore**

            * **rmnews**

            * **sievec**

            * **sieved**

            * **smmapd**

            * **squatter**

            * **sync_client**

            * **sync_reset**

            * **sync_server**

            * **timsieved**

            * **tls_prune**

            * **unexpunge**

          * (1) User Commands

            * **dav_reconstruct**

            * **imtest**

            * **installsieve**

            * **lmtptest**

            * **mupdatetest**

            * **nntptest**

            * **pop3test**

            * **sieveshell**

            * **sivtest**

            * **smtptest**

            * **synctest**

          * Work-in-Progress

            * "ptdump"

            * "ptexpire"

            * "ptloader"

            * **proxyd**

        * Tools & Utilities

          * arbitron

          * arbitronsort.pl

          * chk_cyrus

          * convert-sieve.pl

          * ctl_cyrusdb

          * ctl_deliver

          * ctl_mboxlist

          * cvt_cyrusdb

          * cvt_cyrusdb_all

          * cyr_dbtool

          * cyr_df

          * cyrdump

          * cyr_expire

          * fetchnews

          * cyr_sequence

          * cyr_synclog

          * cyr_userseen

          * masssievec

          * mbexamine

          * mbpath

          * migrate-metadata

          * mkimap

          * mknewsgroups

          * rehash

          * translatesieve

          * undohash

          * upgradesieve

      * Developers

        * Contribute

          * Website Content Contributions

          * Contribute Code

        * IMAP Developer Guide

          * Getting Started

            * Development Process

            * Overview of Cyrus development environment

            * GitHub guide

            * Developer Environment Installation

            * Running a basic server

            * Developer Test Environment

            * JMAP support

            * Contributing to documentation

          * System files and Databases

            * Namespaces: a developer view

          * Resources

            * Developer Libraries

      * Support/Community

        * Support

          * Reporting Bugs

          * Mailing Lists

            * Archives

            * Subscribe/Unsubscribe

            * Digest Lists

          * IRC Chat

          * Online Meetings

        * About

          * What is Cyrus

            * What is Cyrus

            * What is IMAP?

            * IMAP Version 4 (IMAP4)

            * Mime

            * SMTP

          * Who Is Cyrus

            * Core Contributors

            * Individual contributors and past contributors

          * Cyrus Roadmap

            * High Level Roadmap

          * Cyrus History

          * Cyrus Bylaws

            * I. The Cyrus Governance Board

            * II. The Cyrus Core Developers Group

            * III. The Release Engineer

            * IV. The Cyrus Roadmap

            * V. Development Process

            * VI. Changes to the Bylaws

  * What is Cyrus SASL?

    * Cyrus SASL

  * How can we help you?
